iavf_addr_sync(9)

📦 version 7.3.1, in nixpkgs unstable

💖 iavf_addr_sync(9) 💖

okay so welcome to the Kernel API Manual, bestie — section 9, the one where all the driver-internals lore lives. this page is the whole personality of iavf_addr_sync, and honestly? it's giving "small function, big responsibilities." let's get into it 🎀

✨ NAME ✨

iavf_addr_sync — the callback that dev_(mc|uc)_sync hits when it needs to add an address. yep, that's the whole job description and she owns it 💅

🌸 SYNOPSIS 🌸

int iavf_addr_sync (struct net_device *netdev , const u8 *addr );

like, that's the whole signature. two arguments, one int coming back at you. no cap, it's that simple 🦋

🫶 ARGUMENTS 🫶

  • netdev — the netdevice. the main character of this whole operation, fr fr.
  • addr — the address to add. this is the thing she's actually here to do something with 💖

🔥 DESCRIPTION 🔥

okay so here's the lore: this gets called by __dev_(mc|uc)_sync when an address needs to be added. that's the trigger. that's when our girl gets the ping 📲

and then — the part that's lowkey iconic — we call __dev_(uc|mc)_sync from .set_rx_mode, and we guarantee to hold the hash lock. read that again. guaranteed. in writing. the hash lock is held, no cap, that's the whole deal 🔒✨

note the beautiful symmetry going on: mc then uc on the way in, uc then mc on the way out. it's mirrored. it's a vibe. iykyk 💫

🦋 SEE ALSO 🦋

first up, the source of all truth, the kernel file herself:

  • ./drivers/net/ethernet/intel/iavf/iavf_main.c

and now the extended universe — yes, all of it, every single one, because we do not skip entries in this house 👑:

like, that's the entire friend group. go read all of them. or at least the ones adjacent to iavf_addr_unsync(9) — she's literally the mirror twin, obsessed with her 💀💜

and that's the page, bestie!! 🫶 this little gem ships out of ./drivers/net/ethernet/intel/iavf, stamped October 2026, and it's gonna live in your head rent free every time __dev_(mc|uc)_sync comes knocking. slay, stay locked, stay hydrated, mwah 💋✨

📦 where this page comes from